- Mercury Marine released a study that revealed a blend of 15 percent ethanol and gasoline caused so much damageto boat engines that the testing of two of three motor types ended early.Read full report published by NREL Negative Effects of E15 on outboards: http://www.nrel.gov/docs/fy12osti/52909.pdf

- Ethanol Manufacturing Plants Fined For VIOLATIONS: The manufacturing plants that produce ethanol from corn and grains, throughout the U.S. are dangerously increasing pollution and adversely affecting the quality of the air we breathe...Read more:

Request Fuel-Testers Company e-NEWS newsletter for more details and updates .

FAQ - Frequently Asked Questions

Can I safely use E10 type gas in all my engines?

Answer=It depends on several factors...

Most modern engines are designed to run on ethanol blends up to 10% alcohol. Many older engines (pre-2003) issued warnings against use of gas with ethanol, and parts may not be designed to resist solvent effects of alcohol.

For prolonged gas storage, it is always safest to leave gas tank empty, when ethanol-free gas is unavailable.

E10 gas will only remain stable (water-free) for a maximum of 3 months, when stored under ideal low humidity conditions.

Gas Additives:

---> Always check product ingredients before use with E10 fuel type. Most gas additives contain strong solvents, cleansers and/or alcohol, which is contraindicated for use with E10 gas type.

Important: No gas additive can prevent ethanol's natural ability to attract/absorb or remove water in a sedentary engine. Products such as Stabil, only "perk-up" stale fuel by increasing energy content; They do NOT prevent or remove water from gas tank.

After phase separation, most water + alcohol drops to the bottom of the tank -->

Now the lower layer of tank contains an alcohol concentration of 60 to 95%!

* Details 10 Gasoline PHASE SEPARATION: Alcohols attract and absorb water...Oil and water do not mix. Although gas with ethanol may cause varied problems/issues, the #1 reason most engines experience major damage is solely due to running phase-separated fuel, which now has a much higher alcohol concentration at the bottom of the tank + a drop in octane of 2-3 points in the upper tank layer.

10% is the maximum amount of ethanol allowed by all conventional engine manufacturers and warranties. Gas with excess ethanol will absorb MORE WATER, MUCH FASTER.

Warning: E15 (15%) is now being legally sold, but ALL engine manufacturers prohibit use of this new fuel! *Not applicable to FFV's/E85.

Sadly the EPA + ethanol organizations have chosen to ignore all recommendations & research studies

from those who design, sell and repair engines.

Following simple precautions will decrease risk and help safely manage E10 fuel blends.